﻿#region Copyright
// Copyright (c) 2011-2012 RaisingForce Team (Alikin Sergey)
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Diagnostics.Contracts;
using RaisingForce.Raise.ObjectModel;
using RaisingForce.Raise.Presentation.Localization;

namespace RaisingForce.Raise.Presentation.ViewModel.Specialized
{
    public class DoubleMeasureViewModel<TMeasure> :
        ViewModelBase,
        ILocalizable,
        IEquatable<DoubleMeasureViewModel<TMeasure>>
        where TMeasure : IMeasure<double>
    {
        #region Constructors

        public DoubleMeasureViewModel(TMeasure measure)
        {
            if (measure == null)
            {
                throw new ArgumentNullException("measure");
            }
            Contract.EndContractBlock();
            this.measure = measure;
        }

        #endregion

        #region Private Declarations

        [ContractInvariantMethod]
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1822:MarkMembersAsStatic", Justification = "Required for code contracts.")]
        private void ObjectInvariant()
        {
            Contract.Invariant(this.measure != null);
        }

        #endregion

        #region Properties

        private readonly TMeasure measure;

        public TMeasure Measure
        {
            get
            {
                Contract.Ensures(Contract.Result<TMeasure>() != null);
                return this.measure;
            }
        }

        #endregion

        #region ViewModel Properties

        private const string propName = "Name";

        public string Name
        {
            get
            {
                Contract.Ensures(Contract.Result<string>() != null);
                return this.measure.Name;
            }
        }

        private const string propShortName = "ShortName";

        public string ShortName
        {
            get
            {
                Contract.Ensures(Contract.Result<string>() != null);
                return this.measure.ShortName;
            }
        }

        #endregion

        #region Base Overrides

        public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return false;
            }
            if (object.ReferenceEquals(this, obj))
            {
                return true;
            }
            if (obj.GetType() != this.GetType())
            {
                return false;
            }
            return this.Equals(obj as DoubleMeasureViewModel<TMeasure>);
        }

        public override int GetHashCode()
        {
            return this.measure.GetHashCode();
        }

        #endregion

        #region ILocalizable Members

        public void UpdateLocalization()
        {
            this.OnPropertyChanged(propName);
            this.OnPropertyChanged(propShortName);
        }

        #endregion

        #region IEquatable<DoubleMeasureViewModel<TMeasure>> Members

        public bool Equals(DoubleMeasureViewModel<TMeasure> other)
        {
            if (other == null)
            {
                return false;
            }
            if (object.ReferenceEquals(this, other))
            {
                return true;
            }
            if (other.GetType() != this.GetType())
            {
                return false;
            }
            return object.ReferenceEquals(other.measure, this.measure);
        }

        #endregion
    }
}
